// 1.定义格式化事件的方法
function dateFormat(dtStr) {
  const dt = new Date(dtStr);

  const y = dt.getFullYear();

  const m = padZero(dt.getMonth() + 1);

  const d = padZero(dt.getDate());

  const hh = padZero(dt.getHours());

  const mm = padZero(dt.getMinutes());

  const ss = padZero(dt.getSeconds());

  return `${y}-${m}-${d} ${hh}:${mm}:${ss}`;
}

// 补零
function padZero(n) {
  return n > 9 ? n : "0" + n;
}

module.exports = {
  dateFormat,
};
